CVE-2025-21390

Summary

CVE-2025-21390 is a critical Remote Code Execution vulnerability affecting Microsoft Excel. Malicious Excel files can exploit this issue, allowing attackers to execute arbitrary code on victims' systems. Successful exploitation can lead to complete system compromise and unauthorized access to sensitive information. Microsoft has released a patch to address this vulnerability, and users are strongly encouraged to install it promptly to protect against potential attacks. Failure to apply the patch leaves systems vulnerable to remote code execution, potentially resulting in significant data loss or theft.

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